Final answer:
Eric Berne introduced transactional analysis, a therapeutic approach that focuses on analyzing transactions between individuals to improve communication and relationships.
Step-by-step explanation:
Eric Berne introduced transactional analysis, which is the subject of this question. Transactional analysis is a therapeutic approach that involves analyzing the interactions and transactions between individuals to understand and improve their communication and relationships. It focuses on the ego states, or different aspects of personality, that influence behavior. Berne's approach has been widely used in psychotherapy, counseling, and organizational development.